TVS Diodes

Transient voltage suppressor diodes, more commonly known as TVS diodes, are used to protect integrated circuits (ICs). TVS diodes protect semiconductors and sensitive components against high transient voltage spikes (overvoltage) and the effects of arcs, EFT, ESD, inductive load switching, and even lightning strikes. RS Components offer an extensive range of TVS diodes from a multitude of brands across the industry, including Bourns, Littelfuse, ON Semiconductor, STMicroelectronics, Taiwan Semiconductor, Vishay, and more.

TVS diodes are offered in both through-hole and surface mount packages and can be unidirectional or bidirectional. Unidirectional TVS diodes will only allow positive or negative voltage, whereas bidirectional diodes can operate at both positive and negative voltages. TVS diodes are able to conduct large currents to the ground due to their construction. They feature a much larger p-n junction cross-sectional area than standard diodes. You can learn more in our TVS diodes guide.

What are the benefits of using transient voltage suppressor diodes?

Transient voltage suppressors respond incredibly quickly to overvoltage events, clamping transient voltages almost immediately. This enables them to protect circuits from the effects of arcing, inductive load switching, EFT (electrical fast transients), the ESD (electrostatic discharge) created by data lines and electronic circuits, and even lightning strikes.

What to consider when choosing a TVS diode?

There are a number of differentiators when choosing a TVS diode, but two key factors to consider are reverse standoff voltage and breakdown voltage. Reverse standoff voltage is the operating voltage that the data or power line should not exceed. Breakdown voltage is the voltage rating at which the TVS diode will provide protection and start conducting current to the ground. This voltage value is normally a little higher than the reverse standoff voltage.

Typical applications of TVS diodes

  • TVS diodes have numerous applications but are primarily used to protect microprocessors
  • MOS memory
  • AC power lines
  • Telecommunication equipment
  • Consumer electronics

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Description Price Diode Configuration Direction Type Maximum Clamping Voltage Minimum Breakdown Voltage Mounting Type Package Type Maximum Reverse Stand-off Voltage Pin Count Peak Pulse Power Dissipation Maximum Peak Pulse Current ESD Protection Number of Elements per Chip Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 922-8355
Mfr. Part No.DFLT27A-7
MYR0.795
Each (On a Reel of 3000)
units
Single Uni-Directional 43.7V 30V Surface Mount PowerDI 123 27V 2 1125W 5.15A - 1 -65 °C +150 °C
RS Stock No. 802-3073
Mfr. Part No.SMBJ10CA
MYR1.292
Each (In a Pack of 50)
units
Single Bi-Directional 17V 11.1V Surface Mount DO-214AA (SMB) 10V 2 600W 35.3A - 1 -55 °C +150 °C
RS Stock No. 168-7201
Mfr. Part No.SM4T47CAY
MYR1.326
Each (On a Reel of 5000)
units
Single Bi-Directional 84V 44.4V Surface Mount DO-214AC (SMA) 40V 2 400W 27A - 1 -55 °C +150 °C
RS Stock No. 638-8738
Mfr. Part No.1.5KE220CA-E3/54
BrandVishay
MYR2.72
Each (In a Pack of 5)
units
Single Bi-Directional 328V 209V Through Hole 1.5KE 185V 2 1500W 4.6A - 1 -55 °C +175 °C
RS Stock No. 751-4004
Mfr. Part No.DFLT27A-7
MYR1.838
Each (In a Pack of 25)
units
Single Uni-Directional 43.7V 30V Surface Mount PowerDI 123 27V 2 1125W 5.15A - 1 -65 °C +150 °C
RS Stock No. 509-099
Mfr. Part No.PESD3V3S2UT,215
BrandNexperia
MYR1.418
Each (In a Pack of 20)
units
Common Anode Uni-Directional 20V 5.2V Surface Mount SOT-23 (TO-236AB) 3.3V 3 330W 18A Yes 2 -65 °C +150 °C
RS Stock No. 919-6406
Mfr. Part No.1.5KE62CA
MYR1.565
Each (In a Bag of 600)
units
Single Bi-Directional 111V 58.9V Through Hole 1.5KE 53V 2 1500W 90A - 1 -65 °C +175 °C
RS Stock No. 661-3390
Mfr. Part No.TPD2E001DRLR
MYR1.88
Each (In a Pack of 10)
units
Complex Array Uni-Directional 100V 11V Surface Mount SOT-553 5.5V 5 - - - 2 -40 °C +85 °C
RS Stock No. 166-1403
Mfr. Part No.PESD3V3S2UT,215
BrandNexperia
MYR0.409
Each (On a Reel of 3000)
units
Common Anode Uni-Directional 20V 5.2V Surface Mount SOT-23 (TO-236AB) 3.3V 3 330W 18A Yes 2 -65 °C +150 °C
RS Stock No. 146-0603
Mfr. Part No.SM712.TCT
BrandSemtech
MYR3.574
Each (On a Reel of 3000)
units
Series Bi-Directional 26V 13.3V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +125 °C
RS Stock No. 146-0658
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
MYR2.207
Each (On a Reel of 3000)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C
RS Stock No. 725-8786
Mfr. Part No.PESD5V0S1BL,315
BrandNexperia
MYR1.418
Each (On a Tape of 20)
units
Single Bi-Directional 14V 5.5V Surface Mount SOD-882 5V 2 130W 12A Yes 1 -65 °C +150 °C
New
RS Stock No. 922-3347
Mfr. Part No.TPD2E001DRLR
MYR1.08
Each (On a Reel of 4000)
units
- - - - - - - - - - - - - -
RS Stock No. 543-8781
Mfr. Part No.P6KE440A
MYR2.50
Each (In a Pack of 5)
units
Single Uni-Directional 602V 418V Through Hole DO-15 376V 2 600W 1A - 1 -65 °C +175 °C
RS Stock No. 165-3056
Mfr. Part No.SMAJ5.0A
BrandBourns
MYR0.333
Each (On a Reel of 5000)
units
Single Uni-Directional 9.2V 6.4V Surface Mount DO-214AC (SMA) 5V 2 400W 43.5A - 1 -65 °C +150 °C
RS Stock No. 166-2578
Mfr. Part No.P6KE160A
MYR0.968
Each (On a Reel of 4000)
units
Single Uni-Directional 219V 152V Through Hole DO-15 136V 2 600W 2.7A - 1 -65 °C +175 °C
RS Stock No. 165-7005
Mfr. Part No.P6KE47CA-E3/54
BrandVishay
MYR1.377
Each (On a Reel of 4000)
units
Single Bi-Directional 64.8V 44.7V Through Hole DO-204AC 40.2V 2 600W 9.3A - 1 -55 °C +175 °C
RS Stock No. 166-0270
Mfr. Part No.PESD5V0S1BL,315
BrandNexperia
MYR0.434
Each (On a Reel of 10000)
units
Single Bi-Directional 14V 5.5V Surface Mount SOD-882 5V 2 130W 12A Yes 1 -65 °C +150 °C
RS Stock No. 691-0811
Mfr. Part No.SM712.TCT
BrandSemtech
MYR7.896
Each (In a Pack of 5)
units
Series Bi-Directional 26V 13.3V Surface Mount SOT-23 12V 3 400W 17A Yes 2 -55 °C +125 °C
RS Stock No. 773-4577
Mfr. Part No.CDSOT23-SRV05-4
BrandBourns
MYR3.906
Each (In a Pack of 10)
units
Complex Array Uni-Directional 15V 6V Surface Mount SOT-23 5V 6 500W 30A Yes 4 -55 °C +150 °C